Question

我正在编写一个练习程序，允许我编辑数据库。我有它以便加载并显示数据，并且有它可以添加条目。我现在在删除条目时遇到问题，代码在下面，当我运行它时，出现错误消息：org.sqlite.SQLiteException：[SQLITE_ERROR] SQL错误或数据库丢失（“（“附近：语法错误），我已经浏览了代码，没有看到任何错误。

            @FXML
            private void selectStudent(ActionEvent event) throws SQLException{
    StudentData stud = studenttable.getSelectionModel().getSelectedItem();
    String sqlRemove = "DELETE FROM Students(id, fname, lname, email, dob) VALUES (?, ?, ?, ?, ?)";
    try {
        if (stud != null) {
           Connection conn = dbConnection.getConnection();
           PreparedStatement st = conn.prepareStatement(sqlRemove);

            st.setString(1, this.idcolumn.getText());
            st.setString(2, this.fnamecolumn.getText());
            st.setString(3, this.lnamecolumn.getText());
            st.setString(4, this.emailcolumn.getText());
            st.setString(5, this.dobcolumn.getText());

            st.execute();
            conn.close();
        } else {
            test.setText("Please select an Entry");
        }
    }catch (Exception ex){
        ex.printStackTrace();
    }
}

Answer 1

DELETE FROM Students(id, fname, lname, email, dob) VALUES (?, ?, ?, ?, ?)

不是有效的Delete查询，请尝试在sqlLite中运行相同的消息。

应为DELETE FROM Students where (pass any of one condition which returns a row value) i.e. id=?

我的SQL代码出现问题，以从SQL数据库中删除条目

1 个答案: